Arsenal's Pierre-Emerick Aubameyang discovers if he will be able to face Sheffield United in Premier League as Gunners suffer another injury blow

Aubameyang was sent off midway through the second half of Saturday's 1-1 Premier League draw at Selhurst Park after catching Max Meyer high on the ankle with a poor challenge by the touchline.

Referee Paul Tierney showed a yellow card, but the Video Assistant Referee had a look and, after a two-and-a-half-minute delay, the caution was upgraded to a dismissal.

The Gabon forward was distraught as he left the pitch and Meyer had to follow him down the tunnel after failing to recover from the tackle.

Aubameyang - who has 16 goals in all competitions this season - will miss the club's next three games, which include a trip to Chelsea.

Meanwhile, Arsenal will be without Sead Kolasinac for Saturday's Premier League match against United.

The left-back is struggling with a thigh strain and the Gunners hope the 26-year-old will be fit for the London derby at Chelsea next week.

With Kolasinac absent and Kieran Tierney already sidelined following a dislocated shoulder, head coach Mikel Arteta will need to find a solution for the left side of his defence when the Blades visit.

Teenager Bukayo Saka, nominally a winger, has played there on occasion while Ainsley Maitland-Niles is another option.